2 ; RUN: opt < %s -loop-vectorize -force-vector-width=4 -force-vector-interleave=1 -instcombine -debug-only=loop-vectorize -disable-output -print-after=instcombine 2>&1 | FileCheck %s
4 target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
6 ; CHECK-LABEL: more_than_one_use
8 ; PR30627. Check that a compare instruction with more than one use is not
9 ; recognized as uniform and is vectorized.
11 ; CHECK-NOT: Found uniform instruction: %cond = icmp slt i64 %i.next, %n
13 ; CHECK: %[[I:.+]] = add nuw nsw <4 x i64> %vec.ind, <i64 1, i64 1, i64 1, i64 1>
14 ; CHECK: icmp slt <4 x i64> %[[I]], %broadcast.splat
15 ; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
17 define i32 @more_than_one_use(i32* %a, i64 %n) {
22 %i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
23 %r = phi i32 [ %tmp3, %for.body ], [ 0, %entry ]
24 %i.next = add nuw nsw i64 %i, 1
25 %cond = icmp slt i64 %i.next, %n
26 %tmp0 = select i1 %cond, i64 %i.next, i64 0
27 %tmp1 = getelementptr inbounds i32, i32* %a, i64 %tmp0
28 %tmp2 = load i32, i32* %tmp1, align 8
29 %tmp3 = add i32 %r, %tmp2
30 br i1 %cond, label %for.body, label %for.end
33 %tmp4 = phi i32 [ %tmp3, %for.body ]